//宽高
.public_wh(@w, @h) {
    width: @w;
    height: @h;
}

//背景图片
.public_bg_img(@url) {
    background: url(@url);
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

.public_font(@size, @color, @type, @type2, @font-weight, @line-height, @text-align) {
    font-size: @size;
    color: @color;
    font-family: @type, @type2;
    font-weight: @font-weight;
    line-height: @line-height;
    text-align: @text-align;
}